refactor: Implement unified search abstraction, MemoryState refactoring, error handling, and unit test expansion

server/src/handlers/git.rs

@@ -75,3 +75,28 @@ impl McpTool for GetActiveWorktreeContextHandler {
         Ok::<String, crate::error::AppError>(serde_json::to_string_pretty(&result)?)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use tempfile::tempdir;
+    use std::sync::Arc;
+    use serde_json::json;
+
+    #[tokio::test]
+    async fn test_get_active_worktree_context() {
+        let dir = tempdir().unwrap();
+        let state = Arc::new(MemoryState::new(dir.path().to_str().unwrap()));
+        let handler = GetActiveWorktreeContextHandler;
+
+        let result = handler.execute(json!({}), state)
+            .await
+            .map_err(|e| format!("Failed to get worktree context: {}", e))
+            .unwrap();
+
+        let parsed: serde_json::Value = serde_json::from_str(&result).unwrap();
+        assert!(parsed.get("branch").is_some());
+        assert!(parsed.get("modified_files").is_some());
+        assert!(parsed.get("diff").is_some());
+    }
+}